The Samsung Galaxy Note20 Ultra came with eSIM support out of the box, but until today it wasn't available.
Recently, Samsung released an update for TMB carriers with an update log that supports eSIM (DSDS).
How to enable eSIM by OTA update
How to enable eSIM by full flash with Odin
You can see update doc here: https://doc.samsungmobile.co...
Understand what is bit/binary of Samsung firmwares. How to check bit or binary of your phone
What is bit, binary or U of Samsung firmwares?
How to check which bit, binary, U of my phone?
What is BIT, BINARY, U?
When flash samsung firmware or download Samsung firmwares. There is a value called BIT, BINARY or U.
Actually, this value is other calling of SW REV.
Samsung allow you flash firmware which have SW REV. equal or higher current SW REV. of your phon...
From Feb 2020, Samfw direct download link may return a wrong file name when you download firmware
I really do not want that. I had insomnia for 2 days to try fix this problem but no luck
And this is a best way I can do to help you download firmware with a exact file name.
Of course, you can download with a a random file name without any step more but this guide for someone who need...
Guide to resume download when resume error on Samfw.com
This video introducing how to resume download in Samfw.com
Because firmware from Samfw's hot link has expiry time. After that, you will see error 401 when resume download. Please view this short guide to know how to resume it correctly